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You need to know what RDA is! You won’t believe it!

Liliana Costa

Posted on September 28 2018

Do you know what this stands for? It doesn't stand for Recommended Dietary Allowance! 😆 It's definitely not for consumption! 

What does it mean?

What it does mean is Relative Dentine Abrasitivity. Basically, it's a scale used to determine abrasiveness of toothpastes and powders. Highly abrasive products can cause damage to the tooth enamel.

How is it tested?

In a nutshell, acrylic plates are brushed in a brushing machine in a water/toothpaste or powder mixture for up to 6 hours. That's a lot of brushing! The degree of loss is measured and a RDA is given.

What is the scale?

0-70 Low abrasive

71-100 Medium abrasive

101-150 Highly abrasive

151-250 Regarded as harmful limit by FDA

Do you know what the RDA of your daily toothpaste? You most likely won't as toothpastes or whitening powders are not labelled. 

Here are some examples* of toothpastes and RDA values:

4       Toothbrush with plain water

7        Plain baking soda

68      Colgate Regular

70      Colgate Total

77-79 Activated Charcoal

79      Sensodyne

124    Colgate Whitening

200    Colgate's 2 in 1 Control/Whitening

142    Colgate Total Whitening

How does charcoal fit into the scale?

Activated charcoal falls in the 77-79 RDA scale which makes it a gentler teeth whitening choice than many of the whitening toothpastes! 

It's important to remember that every toothpaste whether tartar control or whitening will be more abrasive so starting with choosing a lower RDA toothpaste, a soft bristle brush and a lower RDA whitening product.

So you can be confident that you're getting a natural, gentle, easy & fast alternative to teeth whitening with Charcoal Rescue’s Charcoal Teeth Whitening Powder!

What does it mean for you?

✔️Safe on enamel

✔️Safe abrasive score

✔️Naturally safe way to polish and brighten teeth

Charcoal Rescue activated charcoal teeth whitening powder before and after photos white smile




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